/**************************************************************************
***    
*** Copyright (c) 2000-2006 Regents of the University of Michigan,
***               Saurabh N. Adya, Hayward Chan, Jarrod A. Roy
***               and Igor L. Markov
***
***  Contact author(s): sadya@umich.edu, imarkov@umich.edu
***  Original Affiliation:   University of Michigan, EECS Dept.
***                          Ann Arbor, MI 48109-2122 USA
***
***  Permission is hereby granted, free of charge, to any person obtaining 
***  a copy of this software and associated documentation files (the
***  "Software"), to deal in the Software without restriction, including
***  without limitation 
***  the rights to use, copy, modify, merge, publish, distribute, sublicense, 
***  and/or sell copies of the Software, and to permit persons to whom the 
***  Software is furnished to do so, subject to the following conditions:
***
***  The above copyright notice and this permission notice shall be included
***  in all copies or substantial portions of the Software.
***
*** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
*** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
*** OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
*** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
*** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
*** OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
*** THE USE OR OTHER DEALINGS IN THE SOFTWARE.
***
***
***************************************************************************/


#ifndef CLUSTERDB_H
#define CLUSTERDB_H

#include <Ctainers/bitBoard.h>
#include <algorithm>
#include <cmath>
#include <cstdlib>
#include <map>

namespace parquetfp
{
   class DB;
   class Command_Line;

   class ClusterDB
   {
   private:

      Command_Line *_params; //parameters
      DB *_db;        //just a pointer to base DB
      DB *_newDB;     //used in cluster
      DB *_oldDB;     //used in cluster

      BitBoard _nodesSeenBB;
      std::vector<float> _numConnections;

   public:

      ClusterDB(DB* db, Command_Line *params);
      ~ClusterDB();

      void clusterMulti(DB*& newDB);

      void cluster1Layer(unsigned layerNum, unsigned maxConnId=1, unsigned maxTopLevelNodes=0);
      void addNetsToNewDB(Nets* nets, Nets* newNets, Nodes* nodes, Nodes* newNodes,
                          std::map<unsigned, unsigned>& mapping);

      Node& getClosestNode(Node& currNode, Nodes* nodes, Nets* nets, 
                           std::vector<bool>& seenNodes, unsigned maxConnId=1,
			   bool direction = true);
      void addWSPerNode(void);

      void clusterMultiPhysical(DB*& newDB); //cluster with physical constraints
   };

   struct sortNumConnections //sort connectivities
   {
      bool operator()(Point pt1, Point pt2)
         {
            return (pt1.y < pt2.y);
         }
   };
}

#endif 
